San Luis Weather in July
Average highs run from 106°F on July 1 to 107°F on July 31, and lows from 80°F to 84°F. Normal precipitation for the month is 0.24 in over about 1 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 107°F
- Average low
- 83°F
- Precipitation
- 0.24 in
- Record high
- 124°FJul 28, 1995
- Record low
- 68°FJul 1, 1982
- Chance of a freeze
- 0%
- Days of 90°F or more
- 31.0
- Daylight
- 14 h 14 min to 13 h 45 min
- Cloud cover
- 35%
- Humidity
- 30%
- Dew point
- 53°F
- Wind
- 6.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jul 1 | 106°F | 80°F | 116°F 1985 | 68°F 1982 | 2% |
| Jul 2 | 106°F | 80°F | 117°F 2011 | 70°F 1992 | 2% |
| Jul 3 | 106°F | 80°F | 113°F 1985 | 71°F 2010 | 2% |
| Jul 4 | 106°F | 81°F | 114°F 1989 | 71°F 1995 | 2% |
| Jul 5 | 107°F | 81°F | 115°F 2007 | 73°F 1987 | 2% |
| Jul 6 | 107°F | 81°F | 117°F 2018 | 72°F 2010 | 3% |
| Jul 7 | 107°F | 81°F | 118°F 2017 | 75°F 1982 | 3% |
| Jul 8 | 107°F | 82°F | 117°F 2024 | 72°F 2019 | 3% |
| Jul 9 | 107°F | 82°F | 116°F 2025 | 75°F 2019 | 3% |
| Jul 10 | 107°F | 82°F | 115°F 2012 | 76°F 1982 | 3% |
| Jul 11 | 107°F | 82°F | 114°F 1983 | 76°F 1987 | 3% |
| Jul 12 | 107°F | 82°F | 116°F 1983 | 75°F 2015 | 3% |
| Jul 13 | 107°F | 83°F | 117°F 1983 | 75°F 1984 | 3% |
| Jul 14 | 107°F | 83°F | 115°F 2003 | 73°F 1997 | 3% |
| Jul 15 | 107°F | 83°F | 116°F 1998 | 74°F 2001 | 3% |
| Jul 16 | 107°F | 83°F | 115°F 1992 | 73°F 2011 | 4% |
| Jul 17 | 107°F | 83°F | 117°F 2005 | 74°F 2011 | 4% |
| Jul 18 | 107°F | 83°F | 117°F 1992 | 69°F 1987 | 4% |
| Jul 19 | 107°F | 83°F | 115°F 1989 | 76°F 1987 | 4% |
| Jul 20 | 107°F | 84°F | 116°F 2023 | 77°F 1991 | 4% |
| Jul 21 | 107°F | 84°F | 115°F 2016 | 71°F 1984 | 4% |
| Jul 22 | 107°F | 84°F | 114°F 2016 | 70°F 1987 | 4% |
| Jul 23 | 107°F | 84°F | 117°F 2014 | 73°F 1987 | 4% |
| Jul 24 | 107°F | 84°F | 118°F 2018 | 74°F 2001 | 4% |
| Jul 25 | 107°F | 84°F | 117°F 2018 | 76°F 2020 | 4% |
| Jul 26 | 107°F | 84°F | 117°F 1994 | 76°F 2001 | 4% |
| Jul 27 | 107°F | 84°F | 118°F 1998 | 71°F 1989 | 4% |
| Jul 28 | 107°F | 84°F | 124°F 1995 | 76°F 2025 | 4% |
| Jul 29 | 107°F | 84°F | 116°F 1983 | 77°F 2025 | 4% |
| Jul 30 | 107°F | 84°F | 116°F 1996 | 73°F 2021 | 4% |
| Jul 31 | 107°F | 84°F | 118°F 1996 | 76°F 2012 | 4% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (MST).
- July 1
- sunrise 5:36 AM, sunset 7:50 PM
- July 31
- sunrise 5:53 AM, sunset 7:38 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00003145 (Yuma Mcas), public domain. Records: NOAA GHCN-Daily, station USW00003145, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.